Which Turbulence Model?
Not sure which turbulence model I should be using!
I'm modelling the flow of air (around 40 to 100 l/s) through a small ventilation unit using CFX
Air velocities are low, less than 1 m/s.
It's about 300 x 300 x 600 mm and contains a copper tube heat exchanger and a filter which I've modelled at pressure drops.
Many thanks for any help!
Try using the Menter Shear Stress Transport Model.
This uses K-epsilon in the free stream and k-omega near wall - best of both worlds...
I ended up running most of my simulations using either SSG or RNGkEpsilon. Seemed to provide the closest match to my experimental results.
I'll have a look into the turbulence model that you suggest though.
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